Buffett's company owns nearly 24% of Occidental Petroleum
Billionaire Warren Buffett's company bought more than $200 million more Occidental Petroleum stock over the past week to...
Billionaire Warren Buffett's company bought more than $200 million more Occidental Petroleum stock over the past week to...
A congressional committee has heard grievances against the owners of OxyContin maker Purdue Pharma as it considered legi...